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Question 2: A steam power cycle operates such that the steam exits boiler at 4 MPa,...
A Rankine Cycle based steam power plant produces 200 MW of power. Steam exits the boiler...
A Rankine Cycle based steam power plant produces 200 MW of power. Steam exits the boiler at 3 MPa and 500° C. The turbine exit is at 40 kPa. Isentropic efficiencies of the turbine and pump are 75% and 70% respectively. Show the cycle on a T-s diagram Calculate the mass flow rate of steam Determine the heat transfer rates in the boiler and condenser in MW Determine the cycle efficiency Determine the mass flow rate of the condenser cooling...
. A steam power plant that operates on Rankine cycle has a net power output of...
. A steam power plant that operates on Rankine cycle has a net power output of 45 MW. Steam enters the turbine at 7 MPa and 500o C and is cooled in the condenser at a pressure of 10 kPa by running cooling water from a sea through the tubes of the condenser at rate of 2000 kg/s. Show the cycle on T‐s diagram with respect to saturation line, and determine (a) the thermal efficiency of the cycle, (b) the...
i) An ideal steam power plant operates between a high pressure of 40 bar and a...
i) An ideal steam power plant operates between a high pressure of 40 bar and a low pressure of 0.2 bar. The cooling water in the condenser has a constant pressure of 1 bar. The pump requires a work input of 1.0 kJ/kg. Assume that the heat transfer to the surroundings for all the cycle components are negligible. For the properties in the table below, determine the (a) thermal efficiency, in %, (b) the mass flow rate of the cooling...
A coal-fired steam power plant produces 175 MW of electric power. The power plant operates on...
A coal-fired steam power plant produces 175 MW of electric power. The power plant operates on a Rankine cycle with turbine inlet conditions of 7 MPa and 550oC and a condenser pressure of 15 kPa. The turbine efficiency and pump efficiency are both 0.8. The coal has a heating value (energy released when the fuel is burned) of 29,300 kJ/kg. Assuming that 85 percent of this energy is transferred to the steam in the boiler and that the electric generator...
1. A steam power plant steam power plant operates with a high pressure of 5 MPa...
1. A steam power plant steam power plant operates with a high pressure of 5 MPa and has a oller exit temperature of 600°C receiving heat from 700°C source. The Dient at 20°C provide cooling for the condenser so it can maintain 45°C side. All components are ideal except for the turbine, which has an exit state with a quality of 97%. i) Find the work and heat transfer in all components per kg of water and the turbine isentropic...
1. A Steam Power Plant that operates on an ideal regenerative Rankine Cycle with an open...
1. A Steam Power Plant that operates on an ideal regenerative Rankine Cycle with an open feedwater heater is considered. The turbine inlet conditions are 6 MPa, 450 C. The regeneration pressure is 0.4 MPa. The condenser pressure is 20 kPa. a) Draw the T-s diagram, and the sketch of the steam power plant. b) Calculate the low pressure pump work. c) Calculate the high pressure pump work. d) Calculate the fraction of the steam extracted from the turbine for...
Thermodynamics 1. Saturated liquid H20 at 16 MPa is fed into the boiler of a variant of a Carnot cycle (but simplified Rankin cycle) where the working fluid is not an ideal gas. Saturated H20 va...
Thermodynamics
1. Saturated liquid H20 at 16 MPa is fed into the boiler of a variant of a Carnot cycle (but simplified Rankin cycle) where the working fluid is not an ideal gas. Saturated H20 vapor is fed into the turbine of the same turbine. The condenser of this turbine is operated at 8 kPa. The mass flowrate of the H20 in this cycle is 7.2x103 kg/min. Draw the path of this process on T-s diagram. Estimate the thermal efficiency...
An Actual Steam Power Cycle A steam power plant operates on the cycle. If the isentropic...
An Actual Steam Power Cycle A steam power plant operates on the cycle. If the isentropic efficiency of the turbine is 87 percent and the isentropic efficiency of the pump is 85 percent, determine (a) the thermal efficiency of the cycle and (b) the net power output of the plant for a mass flow rate of 15 kg/s. 15.9 MPa 35°C 15.2 MPa 625°C Boller 15 MPa 5 t 600 C 16 MPa 4 Wturb,out Turbine M7, 0.87 pump.in Pump...
Superheated steam at 20 MPa, 560oC enters the turbine of a vapor power plant. The pressure...
Superheated steam at 20 MPa, 560oC enters the turbine of a vapor power plant. The pressure at the exit of the turbine is 0.7 bar, and liquid leaves the condenser at 0.4 bar at 75oC. The pressure is increased to 20.1 MPa across the pump and the specific enthalpy is 338.14 kJ/kg. The turbine isentropic efficiency is 81%. Cooling water enters the condenser at 20oC with a mass flow rate of 70.7 kg/s and exits the condenser at 38oC. For...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine at 5 MPa and 500°C and is condensed in the condenser at a pressure of 50 kPa. Heat is supplied to th...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine at 5 MPa and 500°C and is condensed in the condenser at a pressure of 50 kPa. Heat is supplied to the steam in a furnace maintained at 800 K, and waste heat is rejected to the surroundings at 300 K. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the net work output, (b) the thermal efficiency...
i) An ideal steam power plant operates between a high pressure of 40 bar and a low pressure of 0.2 bar. The cooling water in the condenser has a constant pressure of 1 bar. The pump requires a work input of 1.0 kJ/kg. Assume that the heat transfer to the surroundings for all the cycle components are negligible. For the properties in the table below, determine the (a) thermal efficiency, in %, (b) the mass flow rate of the cooling...
1. A steam power plant steam power plant operates with a high pressure of 5 MPa and has a oller exit temperature of 600°C receiving heat from 700°C source. The Dient at 20°C provide cooling for the condenser so it can maintain 45°C side. All components are ideal except for the turbine, which has an exit state with a quality of 97%. i) Find the work and heat transfer in all components per kg of water and the turbine isentropic...
1. A Steam Power Plant that operates on an ideal regenerative Rankine Cycle with an open feedwater heater is considered. The turbine inlet conditions are 6 MPa, 450 C. The regeneration pressure is 0.4 MPa. The condenser pressure is 20 kPa. a) Draw the T-s diagram, and the sketch of the steam power plant. b) Calculate the low pressure pump work. c) Calculate the high pressure pump work. d) Calculate the fraction of the steam extracted from the turbine for...
Thermodynamics
1. Saturated liquid H20 at 16 MPa is fed into the boiler of a variant of a Carnot cycle (but simplified Rankin cycle) where the working fluid is not an ideal gas. Saturated H20 vapor is fed into the turbine of the same turbine. The condenser of this turbine is operated at 8 kPa. The mass flowrate of the H20 in this cycle is 7.2x103 kg/min. Draw the path of this process on T-s diagram. Estimate the thermal efficiency...
An Actual Steam Power Cycle A steam power plant operates on the cycle. If the isentropic efficiency of the turbine is 87 percent and the isentropic efficiency of the pump is 85 percent, determine (a) the thermal efficiency of the cycle and (b) the net power output of the plant for a mass flow rate of 15 kg/s. 15.9 MPa 35°C 15.2 MPa 625°C Boller 15 MPa 5 t 600 C 16 MPa 4 Wturb,out Turbine M7, 0.87 pump.in Pump...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine at 5 MPa and 500°C and is condensed in the condenser at a pressure of 50 kPa. Heat is supplied to the steam in a furnace maintained at 800 K, and waste heat is rejected to the surroundings at 300 K. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the net work output, (b) the thermal efficiency...
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